Glossary Results for prefix "pr"
‘Practice & Performance’ | A term normally used to describe amateur enthusiasts who took an interest in railway locomotive performance and recorded train times, weights etc, from which they formed opinions of the merits of different designs of locomotive. They did not normally have access to official information regarding coal and water consumption, exact train weights, valve gear settings etc. | |
Precedent 2-4-0 Locomotive Class | The ‘Precedents’ were the 6ft 6in counterparts of the 5ft 6in ‘Precursors’![]() ![]() ![]() ![]() ![]() |
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Precursor 2-4-0 Locomotive Class (1) | A series of 2-4-0’s built by F.W. Webb![]() ![]() ![]() ![]() |
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Precursor 4-4-0 Locomotive Class (2) | A class of 130 very successful 4-4-0 express passenger![]() ![]() ![]() ![]() ![]() ![]() |
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Precursor Tank Locomotive Class | A 4-4-2 tank locomotive![]() ![]() ![]() |
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The Premier Line | The LNWR’s description of itself. | |
Premium Apprentice | Premium Apprentices paid about £200 to the company in return for a five-year apprenticeship, during which they were paid normal trade apprentice rates. They were not guaranteed a job at the end of their term, though many Crewe Premium Apprentices went on to head most of Britain’s railways at one time or another, and other important industrial concerns. About thirty new Premiums were admitted each year, so it was a select club, indeed the ‘Past and Present Crewe Association’ still meets to this day. Some of the better-known Crewe apprentices include Worsdell, Aspinall, Ivatt, Hoy, Hughes, Gresley and Rolls. | |
Preston & Wigan Railway | Incorporated 1831, but before completion was amalgamated in 1834 with the already-built Wigan Branch Railway![]() ![]() ![]() |
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Prince of Wales 4-6-0 Locomotive Class | A class of 4-6-0 locomotives built by Bowen Cooke![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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Private Owner Wagon | Many industrial concerns whose products were carried by rail had wagons![]() ![]() ![]() |
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Problem 2-2-2 Locomotive Class | Designed by John Ramsbottom![]() ![]() ![]() ![]() ![]() |
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PSI (Pounds per Square Inch) | Imperial measurement of pressure. Locomotive boiler pressure depends on the class of locomotive, but ranges from 80 to 220 psi. Higher pressure is more efficient, but requires stronger engineering! | |
Public Record Office | The Public Record Office is the national archive of England, Wales and the United Kingdom. It brings together and preserves the records, and is located at Kew. | |
Pug Locomotive Class | A common term in Scotland for a small shunting![]() |
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Pull Rod | A rod which is pulled from one end, to actuate something at its other end. For example, when attached to brake hangers and blocks, a pull on one end of the pull rod would transmit a force towards the front of an engine, where it would be attached to further brake hangers and thereby apply the brakes on all wheels at once. |